Prometheus is an open-source monitoring system and time series database. In 2.23.0, Prometheus changed its default UI to the New ui. To ensure a seamless transition, the URL's prefixed by /new redirect to /. Due to a bug in the code, it is possible for an attacker to craft an URL that can redirect to any other URL, in the /new endpoint. If a user visits a prometheus server with a specially crafted address, they can be redirected to an arbitrary URL. The issue was patched in the 2.26.1 and 2.27.1 releases. In 2.28.0, the /new endpoint will be removed completely. The workaround is to disable access to /new via a reverse proxy in front of Prometheus.
CVSS Details
- CVSS 3.1 Base Score: 6.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | alpine-linux-upgrade-prometheus | Aug 22, 2024 | May 19, 2021 | |
| Arch Linux | arch-linux-upgrade-latest | Jul 11, 2025 | May 19, 2021 | |
| Freebsd | freebsd-upgrade-package-prometheus2 | Nov 4, 2022 | Jun 1, 2021 | |
| Suse | — | suse-upgrade-ansiblesuse-upgrade-ansible-docsuse-upgrade-ansible-testsuse-upgrade-dracut-saltbootsuse-upgrade-golang-github-prometheus-prometheussuse-upgrade-mgr-cfgsuse-upgrade-mgr-cfg-actionssuse-upgrade-mgr-cfg-clientsuse-upgrade-mgr-cfg-managementsuse-upgrade-mgr-custom-infosuse-upgrade-mgr-osa-dispatchersuse-upgrade-mgr-osadsuse-upgrade-mgr-pushsuse-upgrade-mgr-virtualization-hostsuse-upgrade-python2-mgr-cfgsuse-upgrade-python2-mgr-cfg-actionssuse-upgrade-python2-mgr-cfg-clientsuse-upgrade-python2-mgr-cfg-managementsuse-upgrade-python2-mgr-osa-commonsuse-upgrade-python2-mgr-osa-dispatchersuse-upgrade-python2-mgr-osadsuse-upgrade-python2-mgr-pushsuse-upgrade-python2-mgr-virtualization-commonsuse-upgrade-python2-mgr-virtualization-hostsuse-upgrade-python2-rhnlibsuse-upgrade-python2-spacewalk-checksuse-upgrade-python2-spacewalk-client-setupsuse-upgrade-python2-spacewalk-client-toolssuse-upgrade-python2-spacewalk-koansuse-upgrade-python2-spacewalk-oscapsuse-upgrade-python2-suseregisterinfosuse-upgrade-python2-uyuni-common-libssuse-upgrade-python3-mgr-cfgsuse-upgrade-python3-mgr-cfg-actionssuse-upgrade-python3-mgr-cfg-clientsuse-upgrade-python3-mgr-cfg-managementsuse-upgrade-python3-mgr-osa-commonsuse-upgrade-python3-mgr-osa-dispatchersuse-upgrade-python3-mgr-osadsuse-upgrade-python3-mgr-pushsuse-upgrade-python3-mgr-virtualization-commonsuse-upgrade-python3-mgr-virtualization-hostsuse-upgrade-python3-rhnlibsuse-upgrade-python3-spacewalk-checksuse-upgrade-python3-spacewalk-client-setupsuse-upgrade-python3-spacewalk-client-toolssuse-upgrade-python3-spacewalk-koansuse-upgrade-python3-spacewalk-oscapsuse-upgrade-python3-suseregisterinfosuse-upgrade-python3-uyuni-common-libssuse-upgrade-spacecmdsuse-upgrade-spacewalk-checksuse-upgrade-spacewalk-client-setupsuse-upgrade-spacewalk-client-toolssuse-upgrade-spacewalk-koansuse-upgrade-spacewalk-oscapsuse-upgrade-suseregisterinfo | Aug 13, 2021 | May 19, 2021 |
| Ubuntu | no-fix-ubuntu-package | Jun 26, 2025 | May 19, 2021 |
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